OFFSET
1,1
COMMENTS
Table starts
..2.....4........8..........16............32.............64............128
..2.....6.......26..........90...........340...........1194...........4424
..4....24......206........1322..........9970..........63892.........459420
..4....56......974.......12164........180886........2228098.......31650312
..8...230.....8064......200864.......5967512......144185218.....4068505132
..8...552....38252.....1867678.....109846410.....5231971212...293426742772
.16..2270...316962....31042576....3655313420...346662397488.38864331960018
.16..5456..1502948...289075166...67561324734.12734002906536
.32.22416.12468758..4812019390.2255342381120
.32.53864.59122266.44835430372
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..97
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-2)
k=2: a(n) = 12*a(n-2) -24*a(n-4) +31*a(n-6) -16*a(n-8) for n>9
k=3: [order 48] for n>50
Empirical for row n:
n=1: a(n) = 2*a(n-1)
n=2: [order 12]
n=3: [order 80] for n>81
EXAMPLE
Some solutions for n=4 k=4
..3..1..1..3....3..1..1..0....3..1..1..0....1..3..3..1....1..0..0..0
..3..2..2..0....3..0..0..0....3..2..2..1....1..0..2..0....1..0..3..3
..3..2..0..0....1..0..2..0....1..0..2..2....1..2..0..1....3..0..2..0
..1..2..0..2....3..0..0..0....3..0..2..3....3..2..0..2....1..3..2..3
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved